Computing attachment fob scales



Sept. 4, 1923. l,466.807

M. PHELPS COMPUTING ATTACHMENT FOR SCALES Filed Aug, 31, 1921 e sheets-sheet 1 Sept. 4, 1923.

M. PHELFS COMPUTING ATTACHMENT F'OR SCALES Filed Aug. 314 1921 6 Sheets-Sheet 2 TOR " TTORNEY.

sept. 4, 1923. 1,466.80?

M. PHELPS COMPUTING ATTACHMENT FOR SCALES IN1/'EN TOR /WC/f/NNEV PHEL P5 sept. 4, 1923. 1,466,807

M. PHELPS COMPUTING ATTACHMENT FOR SCALES Filed Aug. .'51 A 1921 6 Sheets-Sheet 4 ,t l /NVENTOR MCA/MNE y PHEL P5 L.' Y

ATTORNEY.

Sept. 4, 1923.

1M ,22a/ML IITORNEY.

Sept. 4, 1923. 1,466,807

M. PHELPS COMPUTING ATTACHMENT FOR SCALES Filed Aug. 3l, 1921 6 Sheets-Sheet G /05- /l fo x l x "5;-3

n@ Ooo 3j-1 0 qx 9 9 9 ,v l (Ida /00 /a3 o o 2 y? o 99 98 98 o I N VE N TOR MC/f/NNEV PHEL P5 .4 TTOR N EY.

Patented Sept. 4, 1923.

UN'IL'I'ED STATES P'TENT" OFFICE.

`CoiiirPU'rING ATTACHMENT FOR' SCALES,

Application -led Aug-ust 3l, 1921. Serial No. 497,313.

To all 'whom it may concerns Be it known that I, McKINNEY PHELPS, a citizen of Vthe United States, residing at Redlands, in the county of San Bernardino and -Stateof California, have invented new and useful Improvements in Computing Attachments for Scales, of which the followingis a specification.

My invention relates to a computing attachment for scales, the principal objects of my invention being to combine with a scale, of the type such as is ordinarily used upon counters for VWei hing Yvarious commodities, a relatively simple and practical computing mechanism that will Ybe effective in indicating the exact selling price of the rommodityvplaced upon the scale platform;-

and-further to provide -in a machine of the character described simple and efficient means for printingthe total -amount of the transaction upon la slip of4 paper or thin cardboard, and Ywhich hitter'inay be delivered to the purchaser, or used' by the 'men chant in the keepin of his records relating.

to eighing and sel ingtransactions.

A. further object of my invention is to provide simple and clicient, means for accurately vreighingvarious'articles or procl-A ucts that are sold' at different prices per pound, and for mechanically .calculating the amounts to be charged for the differently )riced goods or products.

ith the foregoing and 4other objects in view, my: invention consists in certain noval features of construe-tionA and arrangement ot' parts that will be hereinafter more fully described and claimed and illustrated -in the accompanying drawings, in which:

Figure 1 is a front elevational View ofa computing scaleof rny-improved construction.

Fig. 2 is a vertical section taken on the line S2-2 of Fig. l.

Fig. 3 is a horizontal section taken on the linc 3-3 of Fig. l.

Fig. 4 isa. vertical section taken on `the line 4-4 of Fig. 2.

Fig. 5 is a horizontal section taken approximately on the line 5 5 ofFig. l. l

Fig. 6 is au enlarged detail section taken approximately on theline 6-6 of `Fig 5.

Fig. T is a plan view of a notched and slotted disc that is utilized in my improved computing scale for positioning certain of the levers therein.

Fig, 8 is a sectional View taken approximately on the line 8-8of 7, and showing in sectionthe levers that are associated with the slottedand notched disc.

-Fig. 9; is an enlarged vertical section taken approximately on the line 9-9of Fig. 2.

Fig. 10 isan enlarged cross section .taken approximately on the line 10T-"10 of Fig '5.

- Fig. -11 isa detailelevational view of the.

part-sseen lookingin the direction indicated by the arrows.l1-11. of Fig. 10.- I

Referring by numerals to the accompany-` inggdrawirrgs Which illustrate a. practical em a horizontally disposed .base housing of ,the computing scale,aiid 1l a housing-that projectsupwardly from the' rear. portion` of said .base housing., The3chambers Within these housings communicate with each other,

and-the combined housings =contain praict` cally all of the weighing and computing mechanism'l Formed in theupper-portion of the Vfront wall of. housing 11 is a circular'o ening 412 that is preferably closed, byiseetion ,513 -of glass vor the like, andrirranged within said opening to the rear of the section of glass is a. disc 13.', on ,the front face ofvi'vhich is arranged a scalethe, graduations -of which arearranged and numbered so" as to desig nate pounds. Supported, on pvotally mounted` .scale .beams 14 that are 4arranged on top of the housing 10715 a scale platform 15, and, one ofthe beamsorllevers 16 that is positioned beneath said .-platform extends through-an opening 17 that is formed in the lower portion of-the front wall of housing 11, andthe rearendof said beam or lever is pivotally connected to a vertically disposed rod .18.

The upper end of rod r1S is connected to a flexible metal jtape 19 that is adapted to wind onto' a small drum 20,-and the latter being fixed on a shaft 21 that is journaled for rotation in ,suitable bearings'one of which is at the center of disc 14, and the. forward end of said shaft carries a hand'or pointer 22 that co-operates'with the graduated scale on said disc for. indicating the weight of the articles or products Yplaced on the scale platform. Secured tothe shaft 21 is the inner end of aspira] spring 23, the outer'end of which is secured to apart of the housodiment of my invention, 10 designates- Arranged onI the lower'portion of rod 18 is a collar 24 that serves as-a stop to limit the downward movement of a transversely disposed bar 25, which latter extends across the lower portion of housing l1 and its ends being connected to vertically disposed bars 2G that are arranged for sliding movement in suitable bearings 27. The upper portions of the rear faces of these vertical bars 2G are provided' with rack teeth 28 that mesh with the teeth of pinions 29, and which latter are secured to the end portions of a horizontally disposed shaft 30 that is jour naled for rotation in suitable bearings 31.

Secured on the end portions of shaft 30 adjacent to pinions 29 are small drums 32 on which are arrangedto wind cables 33 that pass upwardly from said drums over grooved pulleys 34 thatare journaled in suitably located brackets 35, and the lower ends of said cables beingfprovided with counterbalancing weights 36' that are arranged for movement in vertically disposed tubular members 3T, and the latter being positioned adjacent to the Yside walls of housing 11.

Secured to shaftBO between the bearings'l is a seriesA of price-proportionate discs 38 that are graduatedl in size from one end of the series to the other, that'is, the smallest disc is fixed on the left-hand end of shaft 30, 'and the succeeding discs toward the right-hand gradually'-increas'e indiameter, and which arrangement provides the disc of largest diameter on the right-hand end of the shaft. 1 i

Secured to the under side of each disc 38 is one'end of a flexible band 39, preferably of metal, the same extending upwardly and forwardly approximately' three-quarters of tliedistance around the circumference of the disc, andits opposite end being formed into an upturned'hook 40 that nonally'occupies a position on the front side of the dise;

Arranged for sliding movement 'inbearL ings 41 that project inwardly from the side walls of housingll 'are verticaliv f disposed bars 42,' the upper ends of whicliare connected by cross bar 43, and pivotally mounted on'said cross bar is a series of upwardly projecting hooks 44, and which latter are adapted to engagewith the hooks 40, there being one hook 44 for each of said hooks 40. The lower portions of hooks 44 are provided with weights 45 that normally hold said hooks out of engagement with the hooks 40, and projectingA inwardly from thelower pon tions of hooks 44 arefingers 46 that are adapted to be engaged by triggers 47, and which latter are `pivotally connected to brackets 48 that project inwardly from the rear wall of housing 11.

Pivotall connected to each trigger 47 is the upper end of a pull rod 49, the lower end thereof being pivotally connected to a hell crank 50, `he latter being pivoted in the lower rear corner between the bottom of housing 10 and rear "Wall of housing 11. Pivotally connected to the vertical arm of each hellcrank Q is the rear end of a rod 51 that extends forwardly through housing l() and its forward end being pivotally connected to thc short depending arm of a bell crank 52, and which latter is pivotally mounted in the forward portion of housing 10.

Pivotally connected to the upper and longer arm of each bell crank 52 is the lower end of a key or pushfbutton 53, and which latter is arranged for operation through an aperture in the front portion of housing 10. Obviously, the number of these keys or push buttons corresponds with the number of discs 38, and saidkeys or push buttons are preferably arranged in inclined rows, as illustrated in Fig. 1, and vthe front face of each button is provided with numerals representing the Vprice per pound of the goods or products that are weighed upon the scale platform.

Formed on thefintermediate portion of the left-hand rodY 42 is a bearing v54 in whichl is journaledfthe rear end of'a rock shaft 55 that extends outwardly through a vertically disposed slot 56 inthe front walll of housing 11,'an'd carried by the outer end of said rock shaft Ais a verticallyfdisposed handlrl 57. Rock shaft55 carries a toothed segment 58 that is'adapted to mesh with the teeth 59 of a vertically disposed bar 60 that l is arranged for vertical movement in bearings G1 that project inwardly from the lefthand side wall of housingv 11.

Pivotally mounted on a fixed 62 within housing 11 a short stance to the right-hand of rock shaftl isa verticallydisposed erossbar 63 with the central portion of which isforznedjintegral the inner end of a horizontally disposed L-shaped arm 64 whichV latter 4projets through an arcuate'slot 65' that formed in the front wall of housing llfandlthe end ofthe outer portion of this arm normally engages in a' recess 66 that is' formed in they upper portion of handle 57 (see Figsfl and 4).

Arranged inthe front side of the front wall of housing 11 above the arcuate slot G5 is a spring catch 67 thatiis adapted to receive he end of arm 64'when thesame is swungr upwardly into an inclined position` as illustrated by dotted lines in Fig. 1.

Pivotally connected tothe ends of cross bar 63 are the ends of links 68, the inner ends of which are pivotally connected to horizontally disposed sliding hars 69, one of which carries a pair of loops that pass around the other bar, and secured tothe ends of saidbars 69 are clamping plates 71 that are positioned on opposite sides of the Vertically movable bar 18.

Under normal conditions, or while arm 64 pin or rod 1 occupies a horizontal position'as illustrated in Fig. 4," the parts 63', 68and 69 are positioned so that clamping plates 71 are spaced apart and'out of engagement with bar 18, and when arm 64is 'swung' into an inclined position, 'the parts'63, 68 and 69- will act to more plates 71'Jinto clamping engagement with bar 18, therebyv holding the same against vertical movement.

Arranged in the lower portion 'of housing l0 is a horizontallydisposed plate 72 that is supported by end walls 73, and journaled for rotation near the center of said plate is a vertically disposedstud 74Ithat carries a gear wheel y75. Journaled inl said plate 7 2 adjacent to the leftsland'side'thereof is the;

lower end of'a vertically'dis'posed shatt 76, the upper portion'of which is journaled-in the bracket '77, fand 1fixed on the lower por-v tion ofsaid shaft is a pinien'78 th'atfmeshes with 'gear wheel' 75. Formed on the upper portion yof shaft :7d-is a spiral1yf d1sposed flange 79 that' is engag'ed'by the bifurcated lower end BOof the vertical bari 42 that 1s provided vwith the bearing 54'. i By Virtue of the constructionijust describedgthe vertical movement of the bar 42'havingithe bifurcated lowerend, willimpart" rotary motion toishaft 7G, 4and throughjpinion '78.gear wheel and Astud 74 will be rotated; 'w i Secured to the upper end of stud. 74fips a disc 8l, the uppersurface of whichis provided with three'sets' of'slots 4orrrec'esses-arranged as illustrated i'n Fig. 7. The slots 82 of the outer row, orthat row'that is'fimmediately adjacent to the edge of the disc. are slightly inclined with respect to 'lines-radiating from the axis ofthe"disc,and the` next adjacent or intermediate slots 83 are each formed by a series of ten substantially-'rectangular recesses that are disposed in step formation, thereby forming Varcuatei slots that extend inwardly Afromfthe-innerende of the slots 82. The length Vof each arcuate slot 83 equals ten of the slots 82, and the connected recesses which lform said slots-83 correspond with ten of the lslots 82 of the outer row. The inner series of slots or recesses 84 are formed so thattheir ends com' inunicate with each other, and said slots or recesses being arranged in offset or step formation. thereby forming a substantially continuous spirally disposed groove on the Afare of the disc within'the arcuate slots 83. Each section of this spirally disposed inner slot corresponds with one of the slots or recesses 83 and with ten ot the outer series of slots or recesses 82.

Overlying disc 81 and supported in suit able bearings 85 is a rod 86, and ivotally secured thereto are the rear ends oiPa series of horizontally disposed bars 87 which overlie the area of the disc 8l that is covered by the slots 83 and 84. and dependingr from these bars 87 are substantially rectangular lugs 88 that are adapted to drop into the slots 82, 83 and 84 when the disc is rotated during a weighing and calculating operation. These bars 87 are arranged iu three sets with ten bars in each set, the same rep resenting units, tens and hundreds, and the length of the intermediate set of bars` or those representing tens, is slightly greater thanithe length of the set representingr hundreds, and the outer set, or that setrepre` sentin units is slightly greater iu length than t e intermediate set, or that set representing tens.

Transversely arranged beneath ,the rear ortions of fthe bars 87 is a common lifting ar 89 that* normally holds bars 87 out oi Contact With 4the disc 81 and that is carried by the rear endof a horizontally disposed arm 90, and the latter being fulcrumed on a bracket 91 that projects upwardly from the bottom of housing 10. The forward end of this arm is provided with a weight which normally-tends to swing the rear end ofwarm() carrying the lifting bar 89 upwardly. Fulcrumed on a bracket 93 that projects upwardly from the bottom of housA ing 10 is a horizontally disposed arm 94. the` free end of which bears on top of arm 90 adjacent toits rear end, and the rear end ofQSaid-armr94 is pivotally connected to the lower end of the vertically moving bar 60A Fulerumed on a plate 95 that projects` upwardly from the rear one of the standards 73 '1s a series of three bell cranks 9G, the same being spaced apart or offset from each other so that the horizontally disposed arm of each bell crank lies immediately beneath one of the sets or Series of the arms 87. 'I ihus the horizontal arm of one of the bell cranks is positioned beneath the rear ends of the longer series of arms, and which represent units, the horizontal arm of the intermediate bell crank beinglr positioned beneath the rear ends of the intermediate set of arms and which represent tens, and the horizontal arm of the third bell crank being disposed immediatel beneath the rear ends of the shorter series of arms and which represent hundreds.

Secured to the outer ends of the horizontal arms ofthe bell cranks 9G are the lower ends of flexible members 97, which latter extend upwardlythrough housingr 11, and the upper ends of said fiexible members being secured to the lower ends of a correspond ing;r Series of links 98, the upper ends of which are pivotally connected to a corresponding series of arms 99, the outer owls of which are pivotally connected to the side walls of the upper portion of housing l1.

Arranged immediately above each series of links 99 is a set of three discs 100, the latter being mounted for independent rotation in suitable bearings lOl`r and the nienr bers of each set of discs beingr offset from los llO

lill) each other so that the numbers appearing on the faces of the ydiscs will appear in.

proper order when viewed throughppenings, such as 102, that are formed in the front and rear walls ofthe upper portion of housing 11.

By utilizing two sets of the numbered.

scale, and likewise by the customer ..posi,

tioned in front or on the opposite side of the scale. Each disc 100 is provided .ion its axis with a small drum 103, and secured thereto and adapted to mount thereuponis asflexible member 104 that extends downwardly and is secured to the corresponding lever 99, For the purpose of returning all ofthe discs to zero indicating positions, ilexible members 105 aref secured to the drums 103, and the upper ends of said lexiblemembe'rs beingsecured to fiat springs 106 that 'are fixed to the'top of the housinglli" 1 Secured to` arms t-107 that' project out` wardly from the bell cranks 96 arelioriz'o'n tally Vdisposed rods 108,"each of'which-is se4 cured to the 'depending' arm 1090i ajtoothed segment 110, and all of said segments' being journaled on shaft 111. p' Thelteeth o ueach segment110 mesh with thefteethoiia pinion 112, and'which latter is loosely, mounted' on shaft 113 that issupported in suitable bearings. lvSecured to each pinion 112 is 'a disc 114 provided on its periphery with printing characters running from zero to nine: W

Pivotally mounted in the lowerriglithand'corner ofhousing 10 is one end o'f-an arm 115; thefree end of'which pccupiesa position beneath-the' endof,E arm Q0 that carriesj the 'cross bar .'89, and projecting iupv wardly-romthe pivotedfend off'arin 115 is apairf'of Esigi'aced arinsll between which are journaled' a pair 'of'roll'ersi117 aiidf118; Fixed toi the' shaft' of the" upper-Weller 118 is a. lratchet' wheel 119that is"engaged by a paw1'1'20 that is 'pivotally mounted on th outer' 'face of the oinion '121, :al'l'dthe teeth of which latter engage with theteeth' of an arcuate rack bar 122, and whichflatteris concentric with the axis/or pivotal point of the arms 116. Carried by the'rlower portions of arms 116 is an upright arm 123, and formed through the upper' portion thereof'is an'openingr 124 throughwhich the printing characterson the discs 114 areadfapted to project` when roller 118 is forced against the upper end of said arm 123.

Journaled in suitable bearings above roller 118 is a shaft 125 on which is mounted 3, spool 126 of paper orv thin cardboard in tape'forni. The web of this tape extends downwardly beneath the upper 'roller 118 and lbetween said roller and the lower feed roller 117. i

`the total cost of which is to be calculated is placed on the scalefplatforin 15, and following such action the weight of the article or product will be indicatedbv the pointer 22 on. the graduated scale on disc 14. The op erator or salesman now. disengages the zii-in G4 from handle 57, swings said arin into an inclined position, as shown by dotted lines inFig. 1, engages the upper end of said arm with spring latch 67, then presses the key or keys vrepresenting the eostor price per ound of the article placed on the scale plat orm, thenrrnoves handle 57 downward to perform certain operations hereinafter more-fully set forth, and a portion of the tape 'from spool 126 will be delivered through an opening in the side wall of housing110 adjacent to rollers 117-118, and which portion of tape has printed thereupon the total amount to be charged for the goods or products placed on the scale platform. lininediately after the handle 57 is pulled downward the total amount of the transaction wil] appear on the portions of the discs 100 that are visible through the openings 102 in the upper portion of housing 11.

The detailed operation of the computing scale'isjisfollows:

VlAssuming"- that the parts of the computing scaleA are in `their normal positions as illustrated in the variousV views of the drawingsfwhen platform 15 is moved dowrr ward by the weight of the goods placed thereon, the rear end of lever 16 is moved downward thereby pulling downward on rod 18, and through band 19 and wheel 20 shaft 21w,il1 be rotated thereby moving counter 22 around the graduated scale on disc 14 to indicate .the exact weight of the goods placedlonv the scale platform. The salesman nowl disengages the end 0l :iini 64 romhandlef' und swings said arm upward into aninclined position so that its free end isfengaged by spring catch 67, which action swings thel cross bar 63 into an angular position, and through links 68 and sliding bars 69, plates 71 are clamped against rod 18 to rmly retain the saine in its loweredA position, and thus the stop 24 on said' rod occupies `a position a certain distance below cross bar 25. The salesman now presses inwardly on the key 53 that represents the price per pound to be charged for the product on the scale platform. and as said key is thus pressed the corresponding rod 51 is drawn forwardlyl tlierebir actuating the corresponding hell crank 50, rod 49, and trigger 47, with the result that the corresponding hook 44 will be thrown into engagement with the coriespoiidiug hook 40 on the forward end of the corre spending?T tiexible band 39. Handle 57 is now engaged and moved downward thereby imparting corresponding movement to the frame comprising the vertically disposed rods 42 :1nd cross bar 43 to which the hooks 44 are pivoted, and the engaged hook will draw downwardly upon the forward end of the engaged band 39, thereby rotatingr the entire series of priceproportionate discs 3S and the shaft 30 to which the same are connected a predetermined portion of the 'complete rotation, the distance of rotation being regulated by the diameter of the disc on which the actuated band is positioned. As a result of this rotation of shaft 30, pinions 29 engage teeth 28 of vertical bars 26, thereby moving the same downward until the cross bar 25 bears against collar 24 which serves as a stop to limit the further downward movement of the handle 57.

As the left-hand one of the members 42 is moved downward, as just described, the bifurcated lower end of said member engages Harige 79 on shaft 76, thereby imparting rotary motion thereto, and through pinion 78 and gear wheel 75, stud 74 and disc 81 are rotated a predetermined porvtion of al complete rotation, this rotation being a function of both the total weight and the cost per unit of weight, andbeing such as to bring certain of the slots 82, 83 and 84 into 4position beneath the row of lugs 88 on the bars 87, and following such action, cross bar 89 being movable by its described connections responsive to movement of handle 5T one bar ot the unit series will swing downward a short distance as its lul;r enters one ot' the slots 82, one of the bars of the tens series will swing downward :is its lug enters one of the re-fesses forming one of the curved slots 83. and one of the third series of bars which represent hundreds will swing downwardly as its lug enters one of the slots 84, it being understood that the dimensions of the respective lugs, whether uniform or varied, are such as to adapt each to cooperate with its corresponding slot. entering the same only when the rotation of the plate 81 brings said slot into a suitable position.

bnr 8T of the hundreds group may re main in one slot. through 100 different positions of dis I 81, in order to register units and tens from 1 to 99; and lug 8S of each tens bar may remain in the same. slot. through ten different positions of the disc 81. for similar reason.

It will be understood that th'e arrangement of the slots 82, 88 and 84 in plate 81 is such that, the selection of one bar of each series being dependent upon the position of disc 81, and the outermost slot ot each series being employed to represent Zero, the next slot representing 1", etc., when pound, the computed total to be indicated,V mav be so low that less than three of the bars 87 will drop dowmvardly in the manner just described.

As certain of the bars 87 swing downward, under the action of the gravity or any applied force and to effect an indication of costpthe corresponding bell cranks 9G will be ariably depressed in the manner best shown in Fig. 10, and to an extent dependent upon the position of the selected.

bar with reference to the associated lever 96 thereby drawing downward on the fleX- ible members 97 andacftuating the corresponding arms 99 and in turn rotating the corresponding discs 100 to move the same into positions'so that the numbers arranged on the faces of said discs will appear through the openings 102 in the upper portion of the housing of the machine, thereby showing,r

the total cost or price of the goods placed` on the scale platform. AsV bell cranks 96 are actuated the corresponding members 108 will be actuated to swing segment 110, thereby` imparting rotary motion to the correspondingr dises 114 through pinions 112, thereby settinrr up or positoning the propel printing characters on the edges of said discs, and which printing characters correspond with the total amount of vthe transaction.

The salesman now engages handle 57 and rotates the same and the shaft 55, and as a result of such movement the teeth of segment 58 will engage the teeth 59 of vertically movable bar 60 thereby swinging arm 94 on its fulcrum, and in turn swinging weighted arm 9() upon its fulcrum, and which latter movement. moves the free end of arm 115 downward. Such movement swings the vertically disposed arm 116 toward the printing wheels, and :is a result of such movement. pinion 121 will rotate by engagement with the. teeth of arm 122 without imparting movement to roller 118. for dnrin; r such movement. pawl 129 will ride over the teeth of ratchet wheel 119.

The tape on the face of roller 118 will be forced through openingr 124 in vertical arm 123 into engagement. with the printing characters on discs 114. thus having the total amount of the transaction printed on said tape, and on the return movement of arm `11G to its normal position, roller 118 will be rotated as a result of the engage ment of the teeth of pinion 121 Vwith the llSU teeth of arm 122, and also the engagement of pawl 120 with the teeth of ratchet wheel 119 s0 that roller 118 will be rotated to feed that portion of the tape that has just been printed outwardly through the opening in the housing, and which printed porn tion of the tape may be removedby the salesman and delivered to the purchaser or retained as a record of the transaction.

The salesman now reversely rotates the handle 57 or shifts the same into its nor mal vertical position and elevates said handle to the upper end of slot 56, which action permits weighted arm to elevate the arms 87 that were previously dropped, and permitting the'printing mechanism to return to its normal position, and likewise permittingr the indicatingr discs to return to their normal positions.

The upward movement of the bifurcated lower end 80 of the lefthand arm L12 is effective in rotating disc 81 to itsnormal position, and after handle 57 has returned to its normal position, arm 64 isswung downward and re-engaged upon said handle which action releases the clamping members 71 from rod 18, and the latter will be elevated by the action of spiral spring 23 actinff upondshaft 21. y

Vhen hooks 44, which were drawn downward on the previous operation,` return To their normal positions, the weights 45 there Y of will disengage said hooks'from the engaged hooks 40, thereby releasing the clamping actions of the hands on the discs 38, and the entire series of discs will be returned to their normal positions by the action of the counterbalancingr weights 36.

Thus it will be seen that I have provided a calculating scale that is effective/ in making arecord of all transactions into which it enters,`and the mechanism of said scale being arranged so as to calculatehindicate and, record the total oost orl price of the goods or products placed on the scale plat- 'fOI'n'L j\ It will be understood that minor changes in size, form and construction of the various parts of my improved computingr attachment for scales may be made and substituted for those herein shown and described without departing from the spirit of in v invention, the scope of which is set forth in the appended claims.

I claim as my invention:

1. In a computingr scale, a platform adapted to receive the articles to he weighed, a dial hearing a graduatedV scale, a pointer aranged for operation adjacent to said graduated scale, a connecting rod adapted to be depressed proportionately to the downward movement of the scale platform for operating said pointer, and man ually operable means for clamping said pointer actuatingr member when the same 'to be depressed 2. In a computing scale, a platform adapted to receive the articles to be weighed,

a dial bearing a graduated scale, a pointer arranged for operation adjacent to said graduated scale, a connectingr rod adapted proportionately to the downward movement of the scale platform for operating said pointer, manually operable means for clamping said pointer aetuating member when the same has been moved downward by said scale platform,

and means for locking said manually operable means in clamping position.

3. In a computing scale, a platform adapted to receive the goods to be weighed, means actuated by the downward movement of said platform for indicating the weight ol goods placed on said platform, means comprising a stop on a rod connectinor said platform and said indicator for calculating the total cost of the articles placed on the scale platform, key actuated means for controlling the operation of said calculating means, and means within the machine and under control Of the calculating means for printing the total amount of each transacvward movement of the scale platform aand which calculating means includes a horizon `tally rotatably mounted disc in the upper surface of whichare formed three sets of. slots, three sels of arms pivotally arranged above said dise, said arms having depend,

ing portions that are adapted to drop into said slots, and means controlled by said arms for indicating the total amount of each weighing and calculating operation.

5. In adapted to receive the articles to bc weighed, means for indicating the weight of the articles placed on said platform, means for calculating the total cost ofthe articles placed on said platform, the operation of which calculating means is controlled hy the downward movement of the scale platform and which calculating means includes a ro tatabiy mounted disc in the upper surface of which is formed threesets of slots. three sets of arms pivotally arranged above said disc, said arms having depending portions that are adapted to drop into said slots, means controlled by said arms for indicatingY the total amount of each weighing and calculating operation. and means for printing a computing-scale, a platform.

lio

,tion upon a. slip and delivering the sameg.

the total amount of each transaction on 'a strip of material and delivering the latter to the exterior of the housing of the computing scale.

6; `In a computing scale, a platform that is adapted to receive the articles to be weighed, means actuated by said platform forl indicating the Weight of articles placed thereon, means for calculating the total cost price of each article placed on the scale platform, which means includes a horizontally rotatably mounted disc provided in its upper face with a plurality of Sets of slots, a series otpiv'otally mounted arms arranged above each set of slots,'said arms having depending -portions that are adapted to enter l r I p -adapted tolreceive the articles to be weighed,

said slots,'and manually operable means for rotating said disc.

' 7. In a computing scale, a platform that is adapted to receive 'the articles to be weighedfmealns 'actuated by said' platform for indicating the weight of articles placed thereon, means for calculating the total cost price of each article placed on the scale platfornnwhich means includes-'a rotatably mounted disc providedin its upper facewvith a plurality of sets of slots, a series of pivotally mounted arms arranged above each set of slots, said arms having depending portions that are adapted to enter said slots, manuallvoperable means for rotating said disc, an means controlled by the Weightof an article placed on the scale platform for controlling the rotary motion imparted to said disc.

8. In a computingr scale, a platform that is adapted vto receive the articles .to he ivcigh'crhmeuns actuated by said platform for indicating the weight of articles placed thcreon` means for calculating the total cost price of cach article placed on the scale platform which menus includes a rotatably mounted disc provided in its upper faire with :i plurality of sets of slots, a series of pivotallv mounted arms arranged above each set of slots, said arms having depending portions that are adapted to enter said slots. manually operable means for rotating said disc. means controlled by the Weight of an article placed on the scale platform for cou'- trollingr the rotarv motion imparted to said disc and means for printing the total :unount of cach transaction upon a strip of material und delivering the printed portion thcrcof to the exterior of the housingr of thc scale.

fl. lri a computing scale, a platform thatl is adapted to receive the articles to be wcighed, means actuated by said platform for indicating the Weight of articles placcd thereon. means for calculatingT the total cost price of euch article placed on the scale plfitform, which means includes a rotatzihlv mounted disc provided in its upper ffice with a plurality of sets of slots, a series of pivottions-that 'are adapted to enter said slots,

manually operable means for rotating said disc. 'means controlled by the Weight of :in article'placed on the scale platform for controlling the ro'tary motion imparted to said disc,"mean's for printing the total amount of each transact-ion upon a strip of material and delivering the printed portion thereof to tlieexte'rior of the housingr of the scale, and meansactuated by the downward movement of the Aarms over theslotted disc for indicating the1total amount of each Weighing and calculating transaction.

I0, In' tif-computing scale, a platform means for'lindicatingtheweight of the artifclesplace'd onlsaid platform, means for calculating thetotal cost of the articles placed onv `said"platform, and which calculating m'e'an's'lincludes a rotatably mounted disc pro- 'videdfin its 'upper face and adjacent to its .outer-edigejvvith-a series vof grooves thatare inclinedslightly with respect to radial lines on said disc, there being a series of arcuate grooves formed in the face' of said disc insidethe first mentioned series of grooves.

'there beinga third series of arcuate grooves, formed in the top of'said disc inside theA 'seco'djsetof groovesland'a" series of arms pivotallyyarriir'iged Yabove said disc, which arms are dividedx into three sets, and said arms having depending portions that are adapted to'drop into jthe grooves in said' disc,

11. ln a -'computiiur scale, a platform adaplcdto rccei ve thc 'articles to bc wcighcd. mcans for indicatingr the weight of lhc urtir cles placedv on said platform. mcans for cailculatiug the total cost of the articles placcd on said platform. thc. operation of which i calculating mca'n's is controllcd liv the do\vn ward movcme-nt of the scale platform and which calculating means includes Aa rotntnhlv mounted disc in the upper surface of which is formed three set-s of slots. thrcc `sets of arms pivotallv arranged above said disc. said arms having delundiugr portions that :irc adapted to drop into said slots. manuali)Y manipulative mcans for controlling ihc :le grcc of rotation of said disc :ind thc position of thc slots thcrcin. und mcnns controllori h v said arms for indi-satin;r the total amount of euch Weighing and calculating operation.

l2. ln af computingr scale. a platform adapted-to receive thc articles to be ivcighcd, means for indicating thc weight of thc arliclcsplaccd 'on said platform. means for calculating the total cost of the articles placed on said platform.V thc oucrriticn of u'licli calculatingY moans is controlled h v thc, downvrird movcment of the scalc platform :ind Which calculating incims includes a rotatablyr mounted disc in the upper surface of which is formed lhrcc sets of slots, three sets of :i1-ms pivotally arranged above said disc, said arms having rjiepending portions that are adapted to drop into said slots, means con trolled by said arms for indicating the total amount of each weighing and calculating operaiion. and gravity actuated means for elevating those armsthat have dropped asa result of movementfof their depending por tions into certain of the slots in said disc.

13. ln a computing scale, a platform adapted to receive the articles to be weighed, means for indicating the Weight of the articles placed on said platform, means for calculating the total cost of the articles placed on said platform, the operation of which calculating means is controlled by the downward movement of the scale platform and which calculating means includes a rotatably mouned disc in the upper surface of Which is formed three sets of slots, three vsets of arms pivotally arranged above said disc, said arms having depending portions that are adapted to drop into said slots, manually manipulative means for controlling the degree of rotation of said dise and the position of the slots therein, means controlled'by said arms for indicating the total amount of each weighing and calculating operation, and gravity actuated means for elevating those arms that have dropped as a result of movement of their depending portions into oertain of the slots in said disc.

14. In a computing scale, a platform adapted to receive the articles to be weighed, means for indicating the Weight of the articles placed on said platform, means for calculating the total cost of the articles placed on said platform, means for indicating the total cost of the articles placed on said platform, manually operable means for controlling (he operation ot said calculating means and the total cost indicating means, and manually manipulative means for controlling the operation of said manually operable means, said calculating means comprising a slotted disc whose rotation is a function of both the weight and the cost per unit of weight.

l5. In a computing scale, a platform adapted to receive the articles to be weighed, means for indicating the weight of the articles placed on said platform, means for calculutingr ihe total cost of the articles placed on said platform, means for indicating the total cosiA of the articles placed on said platform` manually operable means for controlling the operation of said calculating means and the total cost indicating means, manually manipulative means for controlling the operation of said manually operable means, and means for restoring the parts to their normal positions after each Weighing, cal eulating, and indicating operation, said calculating means comprising a slotted disc whose rotation isa. function of both vthe weight and the cost periinit of weight, and said slotted dise being adapted to cooperate selectively with pivoted bars bearing lugs.

16. VIn a computing jscale, a platform adapted to receive the articles to be weighed, means for indicating .the Weight of the arti cles placed oni said platform, means for caleulatingmthel total .cost of the articles placcdon said platform, means operated by-bell-'cranks and flexible connecting members for indicatiug.,the total. cost of the .articles placed onisaid platform, manually operable means foi-controlling the opera tion of said. caleulatingmeans andthe total` cost indicatingmeans, ,manually 4manipulative means'for.contuitjrlling1 the operation of said manually operable meansand means for printing ,thetotal amount of each'transaction on a,\strip,sof material vand delivering the latteri ,to the exteriorwof I.the housing of the computing-sca,l e.,1 .Y

17. In Ycomputing,scale, a platform adapted to ,receiveathe articles, to` be weighed, Vmeans fonindicating the. weight of the articles ,i placed on said platform, means for icalculating the total cost of the articles, placed onr said platform, means operated bybell-cranks variabply depressedfor indicating. the total cost of the articles placed g on. said platform, 4manually operable means forcent-.rolling the :operation of said calculating means an `the total cost ,indicatingv meansl manually` manipulative means for controlling the operation o f said manually operable means, means for printing thototal amount of each transaction on a strip of material and delivering thelatter to the exterior'cf ,the housing of the com' puting scale, and. means forrestoring the parts to their. normal positions after each lWeighing, calculating, indicating, and printing operation.` v l 18. In a computing scale, av substantially L-shaped l1ousing,a platform arranged above the horizontal ,portion of said housing and adapted to receive articles to be weighed, means on the upper part of the vertical portion of theA housing and `actuated by the weight of articles placed on the platform for indicating the weight of said articles, and means Within said Lfshaped housing for calculating the total cost of the articles placed on said platform, said ealculat ing means comprising a slotted dise whose rotation is a function of both the weight and the cost per unit ofweiyght and said slotted disc being adapted to cooperate with inem bers which actuatefa cost indicator.

19. In a computing scale. a substantially L-shaped housing, a platform arranged above the horizontal portion of said housingr and adapted to receive articles ito be weighed, means on the upper part of the vertical portion of' the housing and actuated by the Weight of articles placed on the platform for indicating the weight of saidarticles, means within said L-sha ed housing for calculating the total cost o? the articles placed on said platform, said calculating means comprising a slotted disc whose rotation is a function of both the Weight and the cost per unit of Weight, and duplicate means within the upper part of the vertical portion of the housing for V-indicating at two points the total cost of the articles placed on said platform.

20. In a computing scale, a substantially L-shaped housing, a platform arran ed above the horizontal portion of said housm and adapted to receive articles to be Weighe means on the upper part of the vertical portion of the housing and actuated by the Weight of articles placed on the platform for indicatin the Weight of said articles, means within said L-shaped housing for calculating the total cost of the articles placed on said platform, said calculating means comprising a slotted disc Whose rotation is a function of both the weight and the cost per unit of Weight, duplicate means Within the up er part of the vertical portion of the housing for indicating at tWo points the total cost of the articles "placed on said platform, and means controlled by the movement of pivoted bars movable relative to said disc for printing the total amount of each transaction on a strip of material and delivering the latter to the exterior of said housing.

21. In a computing scale comprising a rod, the extent of Whose movement is dependent upon a Weight, means for clamping said rod after its movement, a stop whose position is dependent upon the extent of movement of said rod, a series of price-proportionate elements differing in diameter to correspond with differences in price per unit of Weight, means for a selection among said price-pro portionate elements, and means for indicating a total price, said last mentioned means comprising an element Whose extent of movement is determined by the position of said stop, and an element Whose rotation is dependent upon both the extent of such movement and the dimensions of a selected price-proportionate element.

In testimony whereof I have signed my name to this specification.

MGKINNEY PHELPS. 

